If some of the mark remains, try using a polishing compound or other rubbing compound. Pro tip: Put some lacquer thinner or acetone on a cloth and the mark should rub off easily. Marks are paint or rubber smudges left on the surface of your car's paintwork when an object (like another car's bumper or the rubber corner of a shopping cart) scrapes your finish but doesn't penetrate the clear coat. Because they don't penetrate too deep, these are the simplest types of scratches to fix. Paying a garage to fit it should be no more than an hours labour.Marks and clear-coat scratches affect only the surface and clear coat level of a car's paint job. Option 2 thats likely to come out the best is get a bumper from a scrapyard the same colour as yours. I think I'd be inclined to go for satin black because spray cans rarely match the colour of the original paint and with satin black, you don't need to do a colour sand and compound afterwards. You could sand it down then spray it with a few coats of primer, sand that smooth with 800 grade wet and dry then paint a colour coat over it.

If I spend say £30 on paint and other materials and it looked even reasonable I would be happy.

I'm not expecting to do a top-notch job, just improve it so it wouldn't look so much of an eyesore.

Do I use the same primer and paint as I would for metal? But I've never done a paint job on plastic. So I wondered if I could tidy it up myself for a few quid? In the past when I had old cars I have done metal bodywork repairs and they didn't look to bad afterwards.

I wouldn't want to spend over £200 and that to happen Reading the replies there's a chance of a re-ocurrence at a later date.

How to get paint off car bumper